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Don't force creation of the FSM on searches. It will still be created

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as soon as the first page fills up, and is marked as (almost) full,
though.
This commit is contained in:
Heikki Linnakangas 2008-11-27 13:32:26 +00:00
parent c3cee16fe8
commit 4d6ee26171
1 changed files with 3 additions and 8 deletions
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11
src/backend/storage/freespace/freespace.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.68 2008/11/26 17:08:57 heikki Exp $ * $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.69 2008/11/27 13:32:26 heikki Exp $
* *
* *
* NOTES: * NOTES:
@ -638,13 +638,8 @@ fsm_search(Relation rel, uint8 min_cat)
Buffer buf; Buffer buf;
uint8 max_avail = 0; uint8 max_avail = 0;
/* /* Read the FSM page. */
* Read the FSM page. The root page is created if it doesn't exist buf = fsm_readbuf(rel, addr, false);
* yet, to save future searchers the effort of having to call
* smgrnblocks() in fsm_readbuf(), only to see that the FSM is
* completely empty.
*/
buf = fsm_readbuf(rel, addr, (addr.level != FSM_ROOT_LEVEL));
/* Search within the page */ /* Search within the page */
if (BufferIsValid(buf)) if (BufferIsValid(buf))